| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S T Y L E -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- $Revision$ |
| -- -- |
| -- Copyright (C) 1992-2001 Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 2, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, USA. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This version of the Style package implements the standard GNAT style |
| -- checking rules. For documentation of these rules, see comments on the |
| -- individual procedures. |
| |
| with Atree; use Atree; |
| with Casing; use Casing; |
| with Csets; use Csets; |
| with Einfo; use Einfo; |
| with Errout; use Errout; |
| with Namet; use Namet; |
| with Opt; use Opt; |
| with Scn; use Scn; |
| with Scans; use Scans; |
| with Sinfo; use Sinfo; |
| with Sinput; use Sinput; |
| with Stand; use Stand; |
| with Stylesw; use Stylesw; |
| |
| package body Style is |
| |
| ----------------------- |
| -- Local Subprograms -- |
| ----------------------- |
| |
| procedure Error_Space_Not_Allowed (S : Source_Ptr); |
| -- Posts an error message indicating that a space is not allowed |
| -- at the given source location. |
| |
| procedure Error_Space_Required (S : Source_Ptr); |
| -- Posts an error message indicating that a space is required at |
| -- the given source location. |
| |
| procedure Require_Following_Space; |
| pragma Inline (Require_Following_Space); |
| -- Require token to be followed by white space. Used only if in GNAT |
| -- style checking mode. |
| |
| procedure Require_Preceding_Space; |
| pragma Inline (Require_Preceding_Space); |
| -- Require token to be preceded by white space. Used only if in GNAT |
| -- style checking mode. |
| |
| ----------------------- |
| -- Body_With_No_Spec -- |
| ----------------------- |
| |
| -- If the check specs mode (-gnatys) is set, then all subprograms must |
| -- have specs unless they are parameterless procedures that are not child |
| -- units at the library level (i.e. they are possible main programs). |
| |
| procedure Body_With_No_Spec (N : Node_Id) is |
| begin |
| if Style_Check_Specs then |
| if Nkind (Parent (N)) = N_Compilation_Unit then |
| declare |
| Spec : constant Node_Id := Specification (N); |
| Defnm : constant Node_Id := Defining_Unit_Name (Spec); |
| |
| begin |
| if Nkind (Spec) = N_Procedure_Specification |
| and then Nkind (Defnm) = N_Defining_Identifier |
| and then No (First_Formal (Defnm)) |
| then |
| return; |
| end if; |
| end; |
| end if; |
| |
| Error_Msg_N ("(style): subprogram body has no previous spec", N); |
| end if; |
| end Body_With_No_Spec; |
| |
| ---------------------- |
| -- Check_Abs_Or_Not -- |
| ---------------------- |
| |
| -- In check tokens mode (-gnatyt), ABS/NOT must be followed by a space |
| |
| procedure Check_Abs_Not is |
| begin |
| if Style_Check_Tokens then |
| if Source (Scan_Ptr) > ' ' then |
| Error_Space_Required (Scan_Ptr); |
| end if; |
| end if; |
| end Check_Abs_Not; |
| |
| ----------------- |
| -- Check_Arrow -- |
| ----------------- |
| |
| -- In check tokens mode (-gnatys), arrow must be surrounded by spaces |
| |
| procedure Check_Arrow is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Arrow; |
| |
| -------------------------- |
| -- Check_Attribute_Name -- |
| -------------------------- |
| |
| -- In check attribute casing mode (-gnatya), attribute names must be |
| -- mixed case, i.e. start with an upper case letter, and otherwise |
| -- lower case, except after an underline character. |
| |
| procedure Check_Attribute_Name (Reserved : Boolean) is |
| begin |
| if Style_Check_Attribute_Casing then |
| if Determine_Token_Casing /= Mixed_Case then |
| Error_Msg_SC ("(style) bad capitalization, mixed case required"); |
| end if; |
| end if; |
| end Check_Attribute_Name; |
| |
| --------------------------- |
| -- Check_Binary_Operator -- |
| --------------------------- |
| |
| -- In check token mode (-gnatyt), binary operators other than the special |
| -- case of exponentiation require surrounding space characters. |
| |
| procedure Check_Binary_Operator is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Binary_Operator; |
| |
| --------------- |
| -- Check_Box -- |
| --------------- |
| |
| -- In check token mode (-gnatyt), box must be preceded by a space or by |
| -- a left parenthesis. Spacing checking on the surrounding tokens takes |
| -- care of the remaining checks. |
| |
| procedure Check_Box is |
| begin |
| if Style_Check_Tokens then |
| if Prev_Token /= Tok_Left_Paren then |
| Require_Preceding_Space; |
| end if; |
| end if; |
| end Check_Box; |
| |
| ----------------- |
| -- Check_Colon -- |
| ----------------- |
| |
| -- In check token mode (-gnatyt), colon must be surrounded by spaces |
| |
| procedure Check_Colon is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Colon; |
| |
| ----------------------- |
| -- Check_Colon_Equal -- |
| ----------------------- |
| |
| -- In check token mode (-gnatyt), := must be surrounded by spaces |
| |
| procedure Check_Colon_Equal is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Colon_Equal; |
| |
| ----------------- |
| -- Check_Comma -- |
| ----------------- |
| |
| -- In check token mode (-gnatyt), comma must be either the first |
| -- token on a line, or be preceded by a non-blank character. |
| -- It must also always be followed by a blank. |
| |
| procedure Check_Comma is |
| begin |
| if Style_Check_Tokens then |
| if Token_Ptr > First_Non_Blank_Location |
| and then Source (Token_Ptr - 1) = ' ' |
| then |
| Error_Space_Not_Allowed (Token_Ptr - 1); |
| end if; |
| |
| if Source (Scan_Ptr) > ' ' then |
| Error_Space_Required (Scan_Ptr); |
| end if; |
| end if; |
| end Check_Comma; |
| |
| ------------------- |
| -- Check_Comment -- |
| ------------------- |
| |
| -- In check comment mode (-gnatyc) there are several requirements on the |
| -- format of comments. The following are permissible comment formats: |
| |
| -- 1. Any comment that is not at the start of a line, i.e. where the |
| -- initial minuses are not the first non-blank characters on the |
| -- line must have at least one blank after the second minus. |
| |
| -- 2. A row of all minuses of any length is permitted (see procedure |
| -- box above in the source of this routine). |
| |
| -- 3. A comment line starting with two minuses and a space, and ending |
| -- with a space and two minuses. Again see the procedure title box |
| -- immediately above in the source. |
| |
| -- 4. A full line comment where two spaces follow the two minus signs. |
| -- This is the normal comment format in GNAT style, as typified by |
| -- the comments you are reading now. |
| |
| -- 5. A full line comment where the first character after the second |
| -- minus is a special character, i.e. a character in the ASCII |
| -- range 16#21#..16#2F# or 16#3A#..16#3F#. This allows special |
| -- comments, such as those generated by gnatprep, or those that |
| -- appear in the SPARK annotation language to be accepted. |
| |
| procedure Check_Comment is |
| S : Source_Ptr; |
| C : Character; |
| |
| begin |
| -- Can never have a non-blank character preceding the first minus |
| |
| if Style_Check_Comments then |
| if Scan_Ptr > Source_First (Current_Source_File) |
| and then Source (Scan_Ptr - 1) > ' ' |
| then |
| Error_Msg_S ("(style) space required"); |
| end if; |
| end if; |
| |
| -- For a comment that is not at the start of the line, the only |
| -- requirement is that we cannot have a non-blank character after |
| -- the second minus sign. |
| |
| if Scan_Ptr /= First_Non_Blank_Location then |
| if Style_Check_Comments then |
| if Source (Scan_Ptr + 2) > ' ' then |
| Error_Msg ("(style) space required", Scan_Ptr + 2); |
| end if; |
| end if; |
| |
| return; |
| |
| -- Case of a comment that is at the start of a line |
| |
| else |
| -- First check, must be in appropriately indented column |
| |
| if Style_Check_Indentation /= 0 then |
| if Start_Column rem Style_Check_Indentation /= 0 then |
| Error_Msg_S ("(style) bad column"); |
| return; |
| end if; |
| end if; |
| |
| -- Now check form of the comment |
| |
| if not Style_Check_Comments then |
| return; |
| |
| -- Case of not followed by a blank. Usually wrong, but there are |
| -- some exceptions that we permit. |
| |
| elsif Source (Scan_Ptr + 2) /= ' ' then |
| C := Source (Scan_Ptr + 2); |
| |
| -- Case of -- all on its own on a line is OK |
| |
| if C < ' ' then |
| return; |
| |
| -- Case of --x, x special character is OK (gnatprep/SPARK/etc.) |
| |
| elsif Character'Pos (C) in 16#21# .. 16#2F# |
| or else |
| Character'Pos (C) in 16#3A# .. 16#3F# |
| then |
| return; |
| |
| -- Otherwise only cases allowed are when the entire line is |
| -- made up of minus signs (case of a box comment). |
| |
| else |
| S := Scan_Ptr + 2; |
| |
| while Source (S) >= ' ' loop |
| if Source (S) /= '-' then |
| Error_Space_Required (Scan_Ptr + 2); |
| return; |
| end if; |
| |
| S := S + 1; |
| end loop; |
| end if; |
| |
| -- If we are followed by a blank, then the comment is OK if the |
| -- character following this blank is another blank or a format |
| -- effector. |
| |
| elsif Source (Scan_Ptr + 3) <= ' ' then |
| return; |
| |
| -- Here is the case where we only have one blank after the two minus |
| -- signs, which is an error unless the line ends with two blanks, the |
| -- case of a box comment. |
| |
| else |
| S := Scan_Ptr + 3; |
| |
| while Source (S) not in Line_Terminator loop |
| S := S + 1; |
| end loop; |
| |
| if Source (S - 1) /= '-' or else Source (S - 2) /= '-' then |
| Error_Space_Required (Scan_Ptr + 3); |
| end if; |
| end if; |
| end if; |
| end Check_Comment; |
| |
| ------------------- |
| -- Check_Dot_Dot -- |
| ------------------- |
| |
| -- In check token mode (-gnatyt), colon must be surrounded by spaces |
| |
| procedure Check_Dot_Dot is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Dot_Dot; |
| |
| ----------------------------------- |
| -- Check_Exponentiation_Operator -- |
| ----------------------------------- |
| |
| -- No spaces are required for the ** operator in GNAT style check mode |
| |
| procedure Check_Exponentiation_Operator is |
| begin |
| null; |
| end Check_Exponentiation_Operator; |
| |
| -------------- |
| -- Check_HT -- |
| -------------- |
| |
| -- In check horizontal tab mode (-gnatyh), tab characters are not allowed |
| |
| procedure Check_HT is |
| begin |
| if Style_Check_Horizontal_Tabs then |
| Error_Msg_S ("(style) horizontal tab not allowed"); |
| end if; |
| end Check_HT; |
| |
| ---------------------- |
| -- Check_Identifier -- |
| ---------------------- |
| |
| -- In check references mode (-gnatyr), identifier uses must be cased |
| -- the same way as the corresponding identifier declaration. |
| |
| procedure Check_Identifier |
| (Ref : Node_Or_Entity_Id; |
| Def : Node_Or_Entity_Id) |
| is |
| Sref : Source_Ptr := Sloc (Ref); |
| Sdef : Source_Ptr := Sloc (Def); |
| Tref : Source_Buffer_Ptr; |
| Tdef : Source_Buffer_Ptr; |
| Nlen : Nat; |
| Cas : Casing_Type; |
| |
| begin |
| -- If reference does not come from source, nothing to check |
| |
| if not Comes_From_Source (Ref) then |
| return; |
| |
| -- Case of definition comes from source |
| |
| elsif Comes_From_Source (Def) then |
| |
| -- Check same casing if we are checking references |
| |
| if Style_Check_References then |
| Tref := Source_Text (Get_Source_File_Index (Sref)); |
| Tdef := Source_Text (Get_Source_File_Index (Sdef)); |
| |
| -- Ignore operator name case completely. This also catches the |
| -- case of where one is an operator and the other is not. This |
| -- is a phenomenon from rewriting of operators as functions, |
| -- and is to be ignored. |
| |
| if Tref (Sref) = '"' or else Tdef (Sdef) = '"' then |
| return; |
| |
| else |
| while Tref (Sref) = Tdef (Sdef) loop |
| |
| -- If end of identifier, all done |
| |
| if not Identifier_Char (Tref (Sref)) then |
| return; |
| |
| -- Otherwise loop continues |
| |
| else |
| Sref := Sref + 1; |
| Sdef := Sdef + 1; |
| end if; |
| end loop; |
| |
| -- Fall through loop when mismatch between identifiers |
| -- If either identifier is not terminated, error. |
| |
| if Identifier_Char (Tref (Sref)) |
| or else |
| Identifier_Char (Tdef (Sdef)) |
| then |
| Error_Msg_Node_1 := Def; |
| Error_Msg_Sloc := Sloc (Def); |
| Error_Msg |
| ("(style) bad casing of & declared#", Sref); |
| return; |
| |
| -- Else end of identifiers, and they match |
| |
| else |
| return; |
| end if; |
| end if; |
| end if; |
| |
| -- Case of definition in package Standard |
| |
| elsif Sdef = Standard_Location then |
| |
| -- Check case of identifiers in Standard |
| |
| if Style_Check_Standard then |
| Tref := Source_Text (Get_Source_File_Index (Sref)); |
| |
| -- Ignore operators |
| |
| if Tref (Sref) = '"' then |
| null; |
| |
| -- Special case of ASCII |
| |
| else |
| if Entity (Ref) = Standard_ASCII then |
| Cas := All_Upper_Case; |
| |
| elsif Entity (Ref) in SE (S_LC_A) .. SE (S_LC_Z) |
| or else |
| Entity (Ref) in SE (S_NUL) .. SE (S_US) |
| or else |
| Entity (Ref) = SE (S_DEL) |
| then |
| Cas := All_Upper_Case; |
| |
| else |
| Cas := Mixed_Case; |
| end if; |
| |
| Nlen := Length_Of_Name (Chars (Ref)); |
| |
| if Determine_Casing |
| (Tref (Sref .. Sref + Source_Ptr (Nlen) - 1)) = Cas |
| then |
| null; |
| else |
| Error_Msg_N |
| ("(style) bad casing for entity in Standard", Ref); |
| end if; |
| end if; |
| end if; |
| end if; |
| end Check_Identifier; |
| |
| ----------------------- |
| -- Check_Indentation -- |
| ----------------------- |
| |
| -- In check indentation mode (-gnatyn for n a digit), a new statement or |
| -- declaration is required to start in a column that is a multiple of the |
| -- indentiation amount. |
| |
| procedure Check_Indentation is |
| begin |
| if Style_Check_Indentation /= 0 then |
| if Token_Ptr = First_Non_Blank_Location |
| and then Start_Column rem Style_Check_Indentation /= 0 |
| then |
| Error_Msg_SC ("(style) bad indentation"); |
| end if; |
| end if; |
| end Check_Indentation; |
| |
| ---------------------- |
| -- Check_Left_Paren -- |
| ---------------------- |
| |
| -- In tone check mode (-gnatyt), left paren must not be preceded by an |
| -- identifier character or digit (a separating space is required) and |
| -- may never be followed by a space. |
| |
| procedure Check_Left_Paren is |
| S : Source_Ptr; |
| |
| begin |
| if Style_Check_Tokens then |
| if Token_Ptr > Source_First (Current_Source_File) |
| and then Identifier_Char (Source (Token_Ptr - 1)) |
| then |
| Error_Space_Required (Token_Ptr); |
| end if; |
| |
| if Source (Scan_Ptr) = ' ' then |
| |
| -- Allow one or more spaces if followed by comment |
| |
| S := Scan_Ptr + 1; |
| loop |
| if Source (S) = '-' and then Source (S + 1) = '-' then |
| return; |
| elsif Source (S) /= ' ' then |
| exit; |
| else |
| S := S + 1; |
| end if; |
| end loop; |
| |
| Error_Space_Not_Allowed (Scan_Ptr); |
| end if; |
| end if; |
| end Check_Left_Paren; |
| |
| --------------------------- |
| -- Check_Line_Terminator -- |
| --------------------------- |
| |
| -- In check blanks at end mode (-gnatyb), lines may not end with a |
| -- trailing space. |
| |
| -- In check max line length mode (-gnatym), the line length must |
| -- not exceed the permitted maximum value. |
| |
| -- In check form feeds mode (-gnatyf), the line terminator may not |
| -- be either of the characters FF or VT. |
| |
| procedure Check_Line_Terminator (Len : Int) is |
| S : Source_Ptr; |
| |
| begin |
| -- Check FF/VT terminators |
| |
| if Style_Check_Form_Feeds then |
| if Source (Scan_Ptr) = ASCII.FF then |
| Error_Msg_S ("(style) form feed not allowed"); |
| |
| elsif Source (Scan_Ptr) = ASCII.VT then |
| Error_Msg_S ("(style) vertical tab not allowed"); |
| end if; |
| end if; |
| |
| -- Check trailing space |
| |
| if Style_Check_Blanks_At_End then |
| if Scan_Ptr >= First_Non_Blank_Location then |
| if Source (Scan_Ptr - 1) = ' ' then |
| S := Scan_Ptr - 1; |
| |
| while Source (S - 1) = ' ' loop |
| S := S - 1; |
| end loop; |
| |
| Error_Msg ("(style) trailing spaces not permitted", S); |
| end if; |
| end if; |
| end if; |
| |
| -- Check max line length |
| |
| if Style_Check_Max_Line_Length then |
| if Len > Style_Max_Line_Length then |
| Error_Msg |
| ("(style) this line is too long", |
| Current_Line_Start + Source_Ptr (Style_Max_Line_Length)); |
| end if; |
| end if; |
| |
| end Check_Line_Terminator; |
| |
| ----------------------- |
| -- Check_Pragma_Name -- |
| ----------------------- |
| |
| -- In check pragma casing mode (-gnatyp), pragma names must be mixed |
| -- case, i.e. start with an upper case letter, and otherwise lower case, |
| -- except after an underline character. |
| |
| procedure Check_Pragma_Name is |
| begin |
| if Style_Check_Pragma_Casing then |
| if Determine_Token_Casing /= Mixed_Case then |
| Error_Msg_SC ("(style) bad capitalization, mixed case required"); |
| end if; |
| end if; |
| end Check_Pragma_Name; |
| |
| ----------------------- |
| -- Check_Right_Paren -- |
| ----------------------- |
| |
| -- In check tokens mode (-gnatyt), right paren must never be preceded by |
| -- a space unless it is the initial non-blank character on the line. |
| |
| procedure Check_Right_Paren is |
| begin |
| if Style_Check_Tokens then |
| if Token_Ptr > First_Non_Blank_Location |
| and then Source (Token_Ptr - 1) = ' ' |
| then |
| Error_Space_Not_Allowed (Token_Ptr - 1); |
| end if; |
| end if; |
| end Check_Right_Paren; |
| |
| --------------------- |
| -- Check_Semicolon -- |
| --------------------- |
| |
| -- In check tokens mode (-gnatyt), semicolon does not permit a preceding |
| -- space and a following space is required. |
| |
| procedure Check_Semicolon is |
| begin |
| if Style_Check_Tokens then |
| if Scan_Ptr > Source_First (Current_Source_File) |
| and then Source (Token_Ptr - 1) = ' ' |
| then |
| Error_Space_Not_Allowed (Token_Ptr - 1); |
| |
| elsif Source (Scan_Ptr) > ' ' then |
| Error_Space_Required (Scan_Ptr); |
| end if; |
| end if; |
| end Check_Semicolon; |
| |
| ---------------- |
| -- Check_Then -- |
| ---------------- |
| |
| -- In check if then layout mode (-gnatyi), we expect a THEN keyword |
| -- to appear either on the same line as the IF, or on a separate line |
| -- after multiple conditions. In any case, it may not appear on the |
| -- line immediately following the line with the IF. |
| |
| procedure Check_Then (If_Loc : Source_Ptr) is |
| begin |
| if Style_Check_If_Then_Layout then |
| if Get_Physical_Line_Number (Token_Ptr) = |
| Get_Physical_Line_Number (If_Loc) + 1 |
| then |
| Error_Msg_SC ("(style) misplaced THEN"); |
| end if; |
| end if; |
| end Check_Then; |
| |
| ------------------------------- |
| -- Check_Unary_Plus_Or_Minus -- |
| ------------------------------- |
| |
| -- In check tokem mode (-gnatyt), unary plus or minus must not be |
| -- followed by a space. |
| |
| procedure Check_Unary_Plus_Or_Minus is |
| begin |
| if Style_Check_Tokens then |
| if Source (Scan_Ptr) = ' ' then |
| Error_Space_Not_Allowed (Scan_Ptr); |
| end if; |
| end if; |
| end Check_Unary_Plus_Or_Minus; |
| |
| ------------------------ |
| -- Check_Vertical_Bar -- |
| ------------------------ |
| |
| -- In check token mode (-gnatyt), vertical bar must be surrounded by spaces |
| |
| procedure Check_Vertical_Bar is |
| begin |
| if Style_Check_Tokens then |
| Require_Preceding_Space; |
| Require_Following_Space; |
| end if; |
| end Check_Vertical_Bar; |
| |
| ----------------------------- |
| -- Error_Space_Not_Allowed -- |
| ----------------------------- |
| |
| procedure Error_Space_Not_Allowed (S : Source_Ptr) is |
| begin |
| Error_Msg ("(style) space not allowed", S); |
| end Error_Space_Not_Allowed; |
| |
| -------------------------- |
| -- Error_Space_Required -- |
| -------------------------- |
| |
| procedure Error_Space_Required (S : Source_Ptr) is |
| begin |
| Error_Msg ("(style) space required", S); |
| end Error_Space_Required; |
| |
| ----------------- |
| -- No_End_Name -- |
| ----------------- |
| |
| -- In check end/exit labels mode (-gnatye), always require the name of |
| -- a subprogram or package to be present on the END, so this is an error. |
| |
| procedure No_End_Name (Name : Node_Id) is |
| begin |
| if Style_Check_End_Labels then |
| Error_Msg_Node_1 := Name; |
| Error_Msg_SP ("(style) `END &` required"); |
| end if; |
| end No_End_Name; |
| |
| ------------------ |
| -- No_Exit_Name -- |
| ------------------ |
| |
| -- In check end/exit labels mode (-gnatye), always require the name of |
| -- the loop to be present on the EXIT when exiting a named loop. |
| |
| procedure No_Exit_Name (Name : Node_Id) is |
| begin |
| if Style_Check_End_Labels then |
| Error_Msg_Node_1 := Name; |
| Error_Msg_SP ("(style) `EXIT &` required"); |
| end if; |
| end No_Exit_Name; |
| |
| ---------------------------- |
| -- Non_Lower_Case_Keyword -- |
| ---------------------------- |
| |
| -- In check casing mode (-gnatyk), reserved keywords must be be spelled |
| -- in all lower case (excluding keywords range, access, delta and digits |
| -- used as attribute designators). |
| |
| procedure Non_Lower_Case_Keyword is |
| begin |
| if Style_Check_Keyword_Casing then |
| Error_Msg_SC ("(style) reserved words must be all lower case"); |
| end if; |
| end Non_Lower_Case_Keyword; |
| |
| ----------------------------- |
| -- Require_Following_Space -- |
| ----------------------------- |
| |
| procedure Require_Following_Space is |
| begin |
| if Source (Scan_Ptr) > ' ' then |
| Error_Space_Required (Scan_Ptr); |
| end if; |
| end Require_Following_Space; |
| |
| ----------------------------- |
| -- Require_Preceding_Space -- |
| ----------------------------- |
| |
| procedure Require_Preceding_Space is |
| begin |
| if Token_Ptr > Source_First (Current_Source_File) |
| and then Source (Token_Ptr - 1) > ' ' |
| then |
| Error_Space_Required (Token_Ptr); |
| end if; |
| end Require_Preceding_Space; |
| |
| --------------------- |
| -- RM_Column_Check -- |
| --------------------- |
| |
| function RM_Column_Check return Boolean is |
| begin |
| return Style_Check and Style_Check_Layout; |
| end RM_Column_Check; |
| |
| ----------------------------------- |
| -- Subprogram_Not_In_Alpha_Order -- |
| ----------------------------------- |
| |
| procedure Subprogram_Not_In_Alpha_Order (Name : Node_Id) is |
| begin |
| if Style_Check_Subprogram_Order then |
| Error_Msg_N |
| ("(style) subprogram body& not in alphabetical order", Name); |
| end if; |
| end Subprogram_Not_In_Alpha_Order; |
| end Style; |
